B4J Question Does the program work from within the B4J IDE? But not when I package it into a standalone Windows EXE?

[mario53]

I have a program that reads a timer on the serial port (com4) and displays it on the video.
in debug it works perfectly, when I package it in a standalone Windows EXE, it loads the form and closes.
I ran run_debag and it gives me these errors:

C:\B4J\crono-timer\Serial_Test\Objects\temp\build\bin>java.exe @release_java_modules.txt -m b4j/b4j.example.main
main$ResumableSub_AppStart.resume (java line: -1)
java.lang.UnsatisfiedLinkError: Could not load the jssc library: Couldn't load library jssc library
at b4j/jssc.SerialNativeInterface.<clinit>(Unknown Source)
at b4j/jssc.SerialPortList.<clinit>(Unknown Source)
at b4j/anywheresoftware.b4j.serial.Serial.ListPorts(Unknown Source)
at b4j/b4j.example.main$ResumableSub_AppStart.resume(Unknown Source)
at b4j/b4j.example.main._appstart(Unknown Source)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at b4j/anywheresoftware.b4a.BA.raiseEvent2(Unknown Source)
at b4j/anywheresoftware.b4a.BA.raiseEvent(Unknown Source)
at b4j/b4j.example.main.start(Unknown Source)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(Unknown Source)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(Unknown Source)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Unknown Source)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(Unknown Source)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)

can't find jssc library
but in C:\Program Files\Anywhere Software\B4J there is
and in the program I added:
#CustomBuildAction: After Packager, %WINDIR%\System32\robocopy.exe, ..\ temp\build\bin\ jssc.dll

thanks for any advice

 

[peacemaker]

Integrated B4JPackager11 - The simple way to distribute standalone UI apps

B4JPackager11 is a utility written in B4J that uses the underlying Java tools to create a standalone package that doesn't depend on any other software being installed. It works with OpenJDK 11 and OpenJDK 14. Starting from B4J v8.30 it is integrated in the IDE and available under Project - Build...

www.b4x.com

But is jssc.dll placed into your project folder ?
Where project.b4j file is: it's "..\" path from the file should be copied into "temp\build\bin\ jssc.dll" by the CustomBuildAction.

 

[DonManfred]

But is jssc.dll placed into your project folder ?

Probably not as he recently successfully ignored my link to the solution

byte in binary format to number conversion after reading on usb

I have a tool that sends this: Every second 12 bytes are transmitted in binary format (val. 0..255). I can intercept the transmission but I can't transform the bytes into numbers (val. 0..255). advice is welcome thanks

www.b4x.com

 

[peacemaker]

and in the program I added:

Just try to read and understand what you do and for what... (for what CustomBuildAction is).

 

[mario53]

Probably not as he recently successfully ignored my link to the solution

byte in binary format to number conversion after reading on usb

I have a tool that sends this: Every second 12 bytes are transmitted in binary format (val. 0..255). I can intercept the transmission but I can't transform the bytes into numbers (val. 0..255). advice is welcome thanks

www.b4x.com

sorry i didnt just ignore it as advised i opened a new question and tried to put jssc.dll in the project folder but nothing changed sorry i missed some info thanks

 

[mario53]

Thanks to all for the advice, I solved the problem.
I had an old version of the jssc.dll library and it couldn't work well. I updated jssc.dll and everything worked.